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-rw-r--r--ext/iconv/iconv.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/ext/iconv/iconv.c b/ext/iconv/iconv.c
index 81116b9b78..c4c6fd8124 100644
--- a/ext/iconv/iconv.c
+++ b/ext/iconv/iconv.c
@@ -467,8 +467,8 @@ iconv_convert(iconv_t cd, VALUE str, long start, long length, int toidx, struct
if (0 <= outlen && outlen <= sizeof(buffer)) {
outlen = sizeof(buffer) - outlen;
if (NIL_P(error) || /* something converted */
- outlen > inptr - tmpstart || /* input can't contain output */
- (outlen < inptr - tmpstart && inlen > 0) || /* something skipped */
+ outlen > (size_t)(inptr - tmpstart) || /* input can't contain output */
+ (outlen < (size_t)(inptr - tmpstart) && inlen > 0) || /* something skipped */
memcmp(buffer, tmpstart, outlen)) /* something differs */
{
if (NIL_P(str)) {